Stress intensity factors for single and double edge cracks in a simple beam subject to a moving load

• Published in: International journal of fracture Vol. 111; no. 2; pp. 151 - 161
• Main Author: Mahmoud, Mohamed A.
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.09.2001; Springer Nature B.V
• Subjects: Beams (structural); Edge cracks; Euler-Bernoulli beams; Exact sciences and technology; Fracture mechanics; Fracture mechanics (crack, fatigue, damage...); Fracture mechanics, fatigue and cracks; Fundamental areas of phenomenology (including applications); Isotopes; Linear elastic fracture mechanics; Modal analysis; Moving loads; Physics; Repair & maintenance; Solid mechanics; Stress intensity factors; Structural and continuum mechanics; Euler equation; Vibration; Modal analysis; Rupture; Simple support; Numerical method; Modeling; Beam(mechanics); Edge crack; Crack propagation; Bernouilli Euler model; Stress intensity factor; Moving load; Crack length; Dynamic load
• ISSN: 0376-9429; 1573-2673
• DOI: 10.1023/A:1012288400397

A procedure is presented for determining stress intensity factors for single and double edge cracks in simply supported undamped Bernoulli–Euler beams under a moving load. The approach is based on using modal analysis to determine the equivalent load on the beam, then linear elastic fracture mechanics is used to calculate stress intensity factors (SIF). The results show that SIF is a function of time, speed of the moving load and crack size and location.